uc1701: make contrast configurable

Signed-off-by: Eric Callahan <arksine.code@gmail.com>
2019-04-02 12:49:08 -04:00
parent 9bd3e80421
commit 2e16be224e
2 changed files with 5 additions and 1 deletions
--- a/config/example-extras.cfg
+++ b/config/example-extras.cfg
@@ -1217,6 +1217,9 @@
 #a0_pin:
 #   The pins connected to an uc1701 type lcd. These parameters must be
 #   provided when using an uc1701 display.
+#contrast: 40
+#   The contrast to set when using a uc1701 type display.  The value may
+#   range from 0 to 63.  Default is 40.
 #cs_pin:
 #dc_pin:
 #spi_bus: